update db/说明.txt.

-

update db/说明.txt.
-
57334f02 · @HuangBingGui · Gitee · da593675 · 57334f02
Unverified Commit 57334f02 authored Feb 16, 2022 by @HuangBingGui Committed by Gitee Feb 16, 2022
--- a/db/说明.txt
+++ b/db/说明.txt
@@ -2,3 +2,4 @@
 包括oracle/mysql/mssql